Stealth browser MCP with three engines, proxy pools, remote CDP, diff observations, and benchmarks.
Connect Runs on your machine
claude mcp add cat-burglar -e BROWSER_MCP_ALLOW_PRIVATE_NETWORK=<BROWSER_MCP_ALLOW_PRIVATE_NETWORK> -e BROWSER_MCP_OBSCURA_PATH=<BROWSER_MCP_OBSCURA_PATH> -e BROWSER_MCP_PROFILE=<BROWSER_MCP_PROFILE> -e BROWSER_MCP_PROXY_POOL=<BROWSER_MCP_PROXY_POOL> -e BROWSER_MCP_CDP_URL=<BROWSER_MCP_CDP_URL> -e BROWSER_MCP_AUDIT=<BROWSER_MCP_AUDIT> -- docker run -i --rm ghcr.io/drmkdaddy/cat-burglar:v0.5.2{
"mcpServers": {
"cat-burglar": {
"command": "docker",
"args": [
"run",
"-i",
"--rm",
"ghcr.io/drmkdaddy/cat-burglar:v0.5.2"
],
"env": {
"BROWSER_MCP_ALLOW_PRIVATE_NETWORK": "<BROWSER_MCP_ALLOW_PRIVATE_NETWORK>",
"BROWSER_MCP_OBSCURA_PATH": "<BROWSER_MCP_OBSCURA_PATH>",
"BROWSER_MCP_PROFILE": "<BROWSER_MCP_PROFILE>",
"BROWSER_MCP_PROXY_POOL": "<BROWSER_MCP_PROXY_POOL>",
"BROWSER_MCP_CDP_URL": "<BROWSER_MCP_CDP_URL>",
"BROWSER_MCP_AUDIT": "<BROWSER_MCP_AUDIT>"
}
}
}
}{
"mcpServers": {
"cat-burglar": {
"command": "docker",
"args": [
"run",
"-i",
"--rm",
"ghcr.io/drmkdaddy/cat-burglar:v0.5.2"
],
"env": {
"BROWSER_MCP_ALLOW_PRIVATE_NETWORK": "<BROWSER_MCP_ALLOW_PRIVATE_NETWORK>",
"BROWSER_MCP_OBSCURA_PATH": "<BROWSER_MCP_OBSCURA_PATH>",
"BROWSER_MCP_PROFILE": "<BROWSER_MCP_PROFILE>",
"BROWSER_MCP_PROXY_POOL": "<BROWSER_MCP_PROXY_POOL>",
"BROWSER_MCP_CDP_URL": "<BROWSER_MCP_CDP_URL>",
"BROWSER_MCP_AUDIT": "<BROWSER_MCP_AUDIT>"
}
}
}
}{
"servers": {
"cat-burglar": {
"type": "stdio",
"command": "docker",
"args": [
"run",
"-i",
"--rm",
"ghcr.io/drmkdaddy/cat-burglar:v0.5.2"
],
"env": {
"BROWSER_MCP_ALLOW_PRIVATE_NETWORK": "<BROWSER_MCP_ALLOW_PRIVATE_NETWORK>",
"BROWSER_MCP_OBSCURA_PATH": "<BROWSER_MCP_OBSCURA_PATH>",
"BROWSER_MCP_PROFILE": "<BROWSER_MCP_PROFILE>",
"BROWSER_MCP_PROXY_POOL": "<BROWSER_MCP_PROXY_POOL>",
"BROWSER_MCP_CDP_URL": "<BROWSER_MCP_CDP_URL>",
"BROWSER_MCP_AUDIT": "<BROWSER_MCP_AUDIT>"
}
}
}
}Replace the values in angle brackets with your own. Keys stay on your machine; we never see them.
Tools
This server runs locally, so its tools are listed by your MCP client once it starts.
Environment variables
| Name | Description |
|---|---|
BROWSER_MCP_ALLOW_PRIVATE_NETWORKOptional | Set to 1 to allow localhost and private-network pages. |
BROWSER_MCP_OBSCURA_PATHOptional | Path to the Obscura binary when it is not on PATH. |
BROWSER_MCP_PROFILEOptional | Observation profile: local, flash, frontier, or auto. |
BROWSER_MCP_PROXY_POOLOptional | JSON array or newline-separated HTTP/HTTPS/SOCKS5 proxy URLs. |
BROWSER_MCP_CDP_URLOptional, secret | Remote Chrome DevTools Protocol endpoint for the remote engine. |
BROWSER_MCP_AUDITOptional | Set to 0 to disable the local audit log. |
Details
| Package | ghcr.io/drmkdaddy/cat-burglar:v0.5.2 (OCI, stdio) |
| First published | 10 Nov 2026 |
| Last updated | 10 Nov 2026 |
| Registry name | io.github.DrMkdaddy/cat-burglar |
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